<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.util.List" %>
<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.Statement" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.DriverManager" %>
<%@ page import="edu.sctu.User" %><%--
  Created by IntelliJ IDEA.
  User: lenovo
  Date: 2018/4/2
  Time: 19:55
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>Title</title>
    </head>
    <body>
    <style type="text/css">

        table {

            border-collapse: collapse;
        }

        td {
            border: 1px solid #000;
            padding: 10px;
        }
    </style>
    <%
        //未登录
        if(session.getAttribute("username")==null){
            //跳转
            response.sendRedirect("login.jsp");
        }
    %>
    <!--include动作-->
    <jsp:include page="header.jsp"></jsp:include>
    <table>
        <tr>
            <td>编号</td>
            <td>姓名</td>
            <td>密码</td>
            <td>操作1</td>
            <td>操作2</td>
            <td>操作3</td>

        </tr>
        <%

            List<User> userList=new ArrayList<User>();
            // User chen=new Use);
       // chen.id=1;
        //chen.name="chengongsuo";
       // chen.password="123";
        Connection connection=null;
        Statement statement=null;
        ResultSet resultSet=null;
        String sql="select * from t_users";
        Class.forName("com.mysql.jdbc.Driver");
        
       // userList.add(chen);
        //加载驱动程序
        connection= DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/sctu_javaweb" +
                        "_2018?serverTimezone=UTC",
                "root",
                "123456"
                
        );
        statement=connection.createStatement();
        resultSet=statement.executeQuery(sql);
        while (resultSet.next()){
            int id=resultSet.getInt(1);
            String name=resultSet.getString(2);
            String password=resultSet.getString(3);

            User user=new User();
            user.setId(id);
            user.setName(name);
            user.setPassword(password);
            userList.add(user);
        }
        resultSet.close();
        statement.close();
        connection.close();
      pageContext.setAttribute("userlist",userList);
    %>
    <c:forEach var="user" items="${userlist}">
        <tr>
            <td>${user.id}</td>
            <td>${user.name}</td>
            <td>${user.password}</td>
            <td><a href='deleteUserHandler.jsp?id=${user.id}'>
               删除
            </a></td>
            <td><a href='userUpdate.jsp?id=${user.id}&username=
               ${user.name}&password=${user.password}'>
                更新
            </a></td>
            <td><a href='userAdd.jsp?id=${user.id}&username=
               ${user.name}&password=${user.password}'>
                增加
            </a></td>
        </tr>
    </c:forEach>

</table>
 <!--include指令-->
<%@include file="footer.jsp"%>
</body>
</html>
